range with中文什么意思

例句与用法

更多例句：  上一页  
1. Chemical analyses showed that the former was characterized by higher sio2 , k2o and lower a12o3 , tio2 than the later , as well as the content of fe varying on a great range with the deposit - forming parent racks and weatering conditions
   其结果表明，风化型高岭土的化学成分一般属硅高铝低型，钾含量偏高，钛含量低，铁含量则随成矿母岩和风化条件的不同波动范围大，矿物组成主要为结晶度较差的高岭石、水云母和石英，以及极少量的管状埃洛石。
2. The wind magnitude and wind pressure can be easily adjusted in a wide range with a displaying device avilable . a well - illuminated air suction hood is equipped , which ensures clear observation of the movement of materials . besides , on both sides of the screen there are four holes available that make cleaning easy . the inclination angle of screen can be adjusted within a scope of 7 - 9 . therefore , this machine is able to maintain stone - removing effect even the amount of material fluctuates . it can be used to remove the mixed stones in foodstuffs , grains , grease , feedstuffs and chemical products
   调节风量风压方便，且范围大有显示装置，配有大采光吸风罩，物料运动一目了然配有先进照明灯观察，筛体二侧设有四个清理手孔清理方便，去石筛面倾斜角度可可、调范围7 - 9 ，因此本机在产量波动范围之内均能达到去石效果及用于去除不同种类，粮食、杂粮、油脂、饲料、化工其它等的并肩石。
3. Among them , phase shifted ( ps ) full bridge ( fb ) zero - voltage - switched ( zvs ) pulse - width - modulated ( pwm ) dc / dc converter has strong competitive power in big power capacity fields . but it has some limitations such as smaller load range with zvs and larger circulation energy . the ps - fb - zvs - pwm dc / dc converter with a saturable inductor utilizes saturable inductor s critical saturable current characteristic and storage energy , to enlarge load range with zvs and improve output efficiency under light load
   其中，移相控制零电压开关脉宽调制dc / dc全桥变换器在大容量领域很有竞争力，但它具有实现零电压开关负载范围小，循环能量大等限制，带饱和电感的移相控制零电压开关全桥变换器利用饱和电感的临界饱和电流特性及储能，来扩大零电压开关( zvs )的负载范围，提高轻载时的输出效率，具有非常重要的研究价值。
4. A current - doubler - rectifier ( cdr ) zvs pwm ( half - bridge ) three - level converter is proposed in this paper . zvs can be achieved for all the switches in a wide load range with the use of the energy stored in the output filter inductances . the output rectifier diodes commutate naturally without voltage oscillation and voltage spike
   针对传统(半桥)三电平直流变换器的一些不足，本文提出一种倍流整流方式pwm零电压开关三电平直流变换器，可以使开关管在全负载范围内实现零电压开关，副边整流二极管无电压尖峰，无占空比丢失。